src/alutInternal.h

   1 /*
   2  * This file should be #included as the first header in all *.c files.
   3  */
   4
   5 #if !defined(ALUT_INTERNAL_H)
   6 #define ALUT_INTERNAL_H
   7
   8 #if HAVE_CONFIG_H
   9 #include "config.h"
  10 #endif
  11
  12 #include <stdlib.h>
  13
  14 #if HAVE_STDINT_H
  15 #include <stdint.h>
  16 #elif _MSC_VER < 1300
  17 typedef char int8_t;
  18 typedef unsigned char uint8_t;
  19 typedef short int16_t;
  20 typedef unsigned short uint16_t;
  21 typedef int int32_t;
  22 typedef unsigned int uint32_t;
  23 #elif HAVE_BASETSD_H
  24 #include <basetsd.h>
  25 typedef INT8 int8_t;
  26 typedef UINT8 uint8_t;
  27 typedef INT16 int16_t;
  28 typedef UINT16 uint16_t;
  29 typedef INT32 int32_t;
  30 typedef UINT32 uint32_t;
  31 #else
  32 #error Do not know sized types on this platform
  33 #endif
  34
  35 typedef int16_t Int16BigEndian;
  36 typedef uint16_t UInt16LittleEndian;
  37 typedef int32_t Int32BigEndian;
  38 typedef uint32_t UInt32LittleEndian;
  39
  40 #if HAVE___ATTRIBUTE__
  41 #define UNUSED(x) x __attribute__((unused))
  42 #else
  43 #define UNUSED(x) x
  44 #endif
  45
  46 #include <AL/alut.h>
  47
  48 #define AU_HEADER_SIZE 24
  49
  50 /* see: http://en.wikipedia.org/wiki/Au_file_format, G.72x are missing */
  51 enum AUEncoding
  52 {
  53   AU_ULAW_8 = 1,                /* 8-bit ISDN u-law */
  54   AU_PCM_8 = 2,                 /* 8-bit linear PCM (signed) */
  55   AU_PCM_16 = 3,                /* 16-bit linear PCM (signed, big-endian) */
  56   AU_PCM_24 = 4,                /* 24-bit linear PCM */
  57   AU_PCM_32 = 5,                /* 32-bit linear PCM */
  58   AU_FLOAT_32 = 6,              /* 32-bit IEEE floating point */
  59   AU_FLOAT_64 = 7,              /* 64-bit IEEE floating point */
  60   AU_ALAW_8 = 27                /* 8-bit ISDN a-law */
  61 };
  62
  63 /* in alutCodec.c */
  64 typedef ALvoid *Codec (ALvoid *data, size_t length, ALint numChannels,
  65                        ALint bitsPerSample, ALfloat sampleFrequency);
  66 extern Codec _alutCodecLinear;
  67 extern Codec _alutCodecPCM8s;
  68 extern Codec _alutCodecPCM16;
  69 extern Codec _alutCodecULaw;
  70 extern Codec _alutCodecALaw;
  71
  72 /* in alutError.c */
  73 extern void _alutSetError (ALenum err);
  74
  75 /* in alutInit.c */
  76 extern ALboolean _alutSanityCheck (void);
  77
  78 /* in alutInputStream.c */
  79 typedef struct InputStream_struct InputStream;
  80 extern InputStream *_alutInputStreamConstructFromFile (const char *fileName);
  81 extern InputStream *_alutInputStreamConstructFromMemory (const ALvoid *data,
  82                                                          size_t length);
  83 extern const char *_alutInputStreamGetFileName (const InputStream *stream);
  84 extern size_t _alutInputStreamGetRemainingLength (const InputStream *stream);
  85 extern ALboolean _alutInputStreamDestroy (InputStream *stream);
  86 extern ALboolean _alutInputStreamEOF (InputStream *stream);
  87 extern ALvoid *_alutInputStreamRead (InputStream *stream, size_t length);
  88 extern ALboolean _alutInputStreamSkip (InputStream *stream,
  89                                        size_t numBytesToSkip);
  90 extern ALboolean _alutInputStreamReadUInt16LE (InputStream *stream,
  91                                                UInt16LittleEndian *value);
  92 extern ALboolean _alutInputStreamReadInt32BE (InputStream *stream,
  93                                               Int32BigEndian *value);
  94 extern ALboolean _alutInputStreamReadUInt32LE (InputStream *stream,
  95                                                UInt32LittleEndian *value);
  96
  97 /* in alutLoader.c */
  98 extern ALuint _alutCreateBufferFromInputStream (InputStream *stream);
  99 extern void *_alutLoadMemoryFromInputStream (InputStream *stream,
 100                                              ALenum *format, ALsizei *size,
 101                                              ALfloat *frequency);
 102
 103 /* in alutOutputStream.c */
 104 typedef struct OutputStream_struct OutputStream;
 105 extern OutputStream *_alutOutputStreamConstruct (size_t maximumLength);
 106 extern ALboolean _alutOutputStreamDestroy (OutputStream *stream);
 107 extern void *_alutOutputStreamGetData (OutputStream *stream);
 108 extern size_t _alutOutputStreamGetLength (OutputStream *stream);
 109 extern ALboolean _alutOutputStreamWriteInt16BE (OutputStream *stream,
 110                                                 Int16BigEndian value);
 111 extern ALboolean _alutOutputStreamWriteInt32BE (OutputStream *stream,
 112                                                 Int32BigEndian value);
 113
 114 /* in alutUtil.c */
 115 extern ALvoid *_alutMalloc (size_t size);
 116 extern ALboolean _alutFormatConstruct (ALint numChannels, ALint bitsPerSample,
 117                                        ALenum *format);
 118 extern ALboolean _alutFormatGetNumChannels (ALenum format,
 119                                             ALint *numChannels);
 120 extern ALboolean _alutFormatGetBitsPerSample (ALenum format,
 121                                               ALint *bitsPerSample);
 122
 123 /* in alutWaveform.c */
 124 typedef struct BufferData_struct BufferData;
 125 extern BufferData *_alutBufferDataConstruct (ALvoid *data, size_t length,
 126                                              ALint numChannels,
 127                                              ALint bitsPerSample,
 128                                              ALfloat sampleFrequency);
 129 extern ALboolean _alutBufferDataDestroy (BufferData *bufferData);
 130 extern void _alutBufferDataDetachData (BufferData *bufferData);
 131 extern ALvoid *_alutBufferDataGetData (const BufferData *bufferData);
 132 extern size_t _alutBufferDataGetLength (const BufferData *bufferData);
 133 extern ALfloat _alutBufferDataGetSampleFrequency (const BufferData
 134                                                   *bufferData);
 135 extern ALboolean _alutGetFormat (const BufferData *bufferData,
 136                                  ALenum *format);
 137 extern ALuint _alutPassBufferData (BufferData *bufferData);
 138
 139 #endif /* not ALUT_INTERNAL_H */